145020234 has 32 divisors (see below), whose sum is σ = 307618560. Its totient is φ = 45420032.

The previous prime is 145020167. The next prime is 145020247. The reversal of 145020234 is 432020541.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 145020234.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111862 + ... + 113150.

It is an arithmetic number, because the mean of its divisors is an integer number (9613080).

Almost surely, 2^145020234 is an apocalyptic number.

145020234 is an abundant number, since it is smaller than the sum of its proper divisors (162598326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145020234 is a wasteful number, since it uses less digits than its factorization.

145020234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 145020234 is about 12042.4347206036. The cubic root of 145020234 is about 525.3832231465.

Adding to 145020234 its reverse (432020541), we get a palindrome (577040775).

The spelling of 145020234 in words is "one hundred forty-five million, twenty thousand, two hundred thirty-four".